I started Depo-Provera on the 13th of August, been having unprotected sex as I thought it was safe (wasn't pregnant beforehand and waited 3 weeks before having said sex), haven't had normal periods since. Only spotting brown blood throughout the whole of September (on and off not all the time), but this whole week I've been bleeding. Woke up this morning to one mass of tissue in my period pad and another came out when I was in the shower. They're both about the size of a 2p coin (UK currency).
I also took a pregnancy test which came back negative.
Can anyone help? Was it a miscarriage or decidual cast?